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Finding the Fourth Proportional to 5,810.65, 8,018.46 and 3,157.99

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Solution

The fourth proportional to 5,810.65, 8,018.46 and 3,157.99 is: 4,357.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,810.65 : 8,018.46 = 3,157.99 : x
  2. Step 2: Convert to fraction form
    5,810.65/8,018.46 = 3,157.99/x
  3. Step 3: Cross multiply
    5,810.65x = 8,018.46 × 3,157.99
  4. Step 4: Simplify right side
    5,810.65x = 25,322,216.50
  5. Step 5: Solve for x
    x = 25,322,216.50/5,810.65
  6. Step 6: Final answer
    x = 4,357.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.